Home / 176,451.42-243,531.99-128,862.30

Finding the Fourth Proportional to 176,451.42, 243,531.99 and 128,862.30

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Solution

The fourth proportional to 176,451.42, 243,531.99 and 128,862.30 is: 177,851.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,451.42 : 243,531.99 = 128,862.30 : x
  2. Step 2: Convert to fraction form
    176,451.42/243,531.99 = 128,862.30/x
  3. Step 3: Cross multiply
    176,451.42x = 243,531.99 × 128,862.30
  4. Step 4: Simplify right side
    176,451.42x = 31,382,092,354.98
  5. Step 5: Solve for x
    x = 31,382,092,354.98/176,451.42
  6. Step 6: Final answer
    x = 177,851.17

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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.