Home / 157,316.03-217,099.47-85,695.90

Finding the Fourth Proportional to 157,316.03, 217,099.47 and 85,695.90

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Solution

The fourth proportional to 157,316.03, 217,099.47 and 85,695.90 is: 118,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,316.03 : 217,099.47 = 85,695.90 : x
  2. Step 2: Convert to fraction form
    157,316.03/217,099.47 = 85,695.90/x
  3. Step 3: Cross multiply
    157,316.03x = 217,099.47 × 85,695.90
  4. Step 4: Simplify right side
    157,316.03x = 18,604,534,471.17
  5. Step 5: Solve for x
    x = 18,604,534,471.17/157,316.03
  6. Step 6: Final answer
    x = 118,262.17

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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.