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Finding the Fourth Proportional to 145,607.88, 217,242.23 and 129,623.11

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Solution

The fourth proportional to 145,607.88, 217,242.23 and 129,623.11 is: 193,393.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,607.88 : 217,242.23 = 129,623.11 : x
  2. Step 2: Convert to fraction form
    145,607.88/217,242.23 = 129,623.11/x
  3. Step 3: Cross multiply
    145,607.88x = 217,242.23 × 129,623.11
  4. Step 4: Simplify right side
    145,607.88x = 28,159,613,260.27
  5. Step 5: Solve for x
    x = 28,159,613,260.27/145,607.88
  6. Step 6: Final answer
    x = 193,393.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.