Home / 133,123.10-183,710.43-72,695.07

Finding the Fourth Proportional to 133,123.10, 183,710.43 and 72,695.07

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Solution

The fourth proportional to 133,123.10, 183,710.43 and 72,695.07 is: 100,319.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,123.10 : 183,710.43 = 72,695.07 : x
  2. Step 2: Convert to fraction form
    133,123.10/183,710.43 = 72,695.07/x
  3. Step 3: Cross multiply
    133,123.10x = 183,710.43 × 72,695.07
  4. Step 4: Simplify right side
    133,123.10x = 13,354,842,568.58
  5. Step 5: Solve for x
    x = 13,354,842,568.58/133,123.10
  6. Step 6: Final answer
    x = 100,319.50

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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.