Home / 157,432.02-217,254.84-85,812.06

Finding the Fourth Proportional to 157,432.02, 217,254.84 and 85,812.06

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Solution

The fourth proportional to 157,432.02, 217,254.84 and 85,812.06 is: 118,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,432.02 : 217,254.84 = 85,812.06 : x
  2. Step 2: Convert to fraction form
    157,432.02/217,254.84 = 85,812.06/x
  3. Step 3: Cross multiply
    157,432.02x = 217,254.84 × 85,812.06
  4. Step 4: Simplify right side
    157,432.02x = 18,643,085,365.37
  5. Step 5: Solve for x
    x = 18,643,085,365.37/157,432.02
  6. Step 6: Final answer
    x = 118,419.91

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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.