Home / 124,386.23-186,431.73-71,686.82

Finding the Fourth Proportional to 124,386.23, 186,431.73 and 71,686.82

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Solution

The fourth proportional to 124,386.23, 186,431.73 and 71,686.82 is: 107,445.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,386.23 : 186,431.73 = 71,686.82 : x
  2. Step 2: Convert to fraction form
    124,386.23/186,431.73 = 71,686.82/x
  3. Step 3: Cross multiply
    124,386.23x = 186,431.73 × 71,686.82
  4. Step 4: Simplify right side
    124,386.23x = 13,364,698,068.05
  5. Step 5: Solve for x
    x = 13,364,698,068.05/124,386.23
  6. Step 6: Final answer
    x = 107,445.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.