Home / 124,671,338.42-172,038,248.54-71,739,502.76

Finding the Fourth Proportional to 124,671,338.42, 172,038,248.54 and 71,739,502.76

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Solution

The fourth proportional to 124,671,338.42, 172,038,248.54 and 71,739,502.76 is: 98,995,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,671,338.42 : 172,038,248.54 = 71,739,502.76 : x
  2. Step 2: Convert to fraction form
    124,671,338.42/172,038,248.54 = 71,739,502.76/x
  3. Step 3: Cross multiply
    124,671,338.42x = 172,038,248.54 × 71,739,502.76
  4. Step 4: Simplify right side
    124,671,338.42x = 12,341,938,404,742,006
  5. Step 5: Solve for x
    x = 12,341,938,404,742,006/124,671,338.42
  6. Step 6: Final answer
    x = 98,995,796.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.