Home / 124,756.99-172,160.53-78,841.17

Finding the Fourth Proportional to 124,756.99, 172,160.53 and 78,841.17

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Solution

The fourth proportional to 124,756.99, 172,160.53 and 78,841.17 is: 108,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,756.99 : 172,160.53 = 78,841.17 : x
  2. Step 2: Convert to fraction form
    124,756.99/172,160.53 = 78,841.17/x
  3. Step 3: Cross multiply
    124,756.99x = 172,160.53 × 78,841.17
  4. Step 4: Simplify right side
    124,756.99x = 13,573,337,728.17
  5. Step 5: Solve for x
    x = 13,573,337,728.17/124,756.99
  6. Step 6: Final answer
    x = 108,798.22

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1.5x scale

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.