Home / 124,688.96-172,071.89-70,977.45

Finding the Fourth Proportional to 124,688.96, 172,071.89 and 70,977.45

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Solution

The fourth proportional to 124,688.96, 172,071.89 and 70,977.45 is: 97,949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,688.96 : 172,071.89 = 70,977.45 : x
  2. Step 2: Convert to fraction form
    124,688.96/172,071.89 = 70,977.45/x
  3. Step 3: Cross multiply
    124,688.96x = 172,071.89 × 70,977.45
  4. Step 4: Simplify right side
    124,688.96x = 12,213,223,613.99
  5. Step 5: Solve for x
    x = 12,213,223,613.99/124,688.96
  6. Step 6: Final answer
    x = 97,949.52

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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.