Home / 157,111.27-216,811.73-85,490.06

Finding the Fourth Proportional to 157,111.27, 216,811.73 and 85,490.06

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Solution

The fourth proportional to 157,111.27, 216,811.73 and 85,490.06 is: 117,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,111.27 : 216,811.73 = 85,490.06 : x
  2. Step 2: Convert to fraction form
    157,111.27/216,811.73 = 85,490.06/x
  3. Step 3: Cross multiply
    157,111.27x = 216,811.73 × 85,490.06
  4. Step 4: Simplify right side
    157,111.27x = 18,535,246,294.89
  5. Step 5: Solve for x
    x = 18,535,246,294.89/157,111.27
  6. Step 6: Final answer
    x = 117,975.28

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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.