Home / 157,429.34-217,252.62-85,807.92

Finding the Fourth Proportional to 157,429.34, 217,252.62 and 85,807.92

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Solution

The fourth proportional to 157,429.34, 217,252.62 and 85,807.92 is: 118,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,429.34 : 217,252.62 = 85,807.92 : x
  2. Step 2: Convert to fraction form
    157,429.34/217,252.62 = 85,807.92/x
  3. Step 3: Cross multiply
    157,429.34x = 217,252.62 × 85,807.92
  4. Step 4: Simplify right side
    157,429.34x = 18,641,995,436.75
  5. Step 5: Solve for x
    x = 18,641,995,436.75/157,429.34
  6. Step 6: Final answer
    x = 118,415.00

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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.