Home / 85,111.26-127,666.92-84,988.28

Finding the Fourth Proportional to 85,111.26, 127,666.92 and 84,988.28

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Solution

The fourth proportional to 85,111.26, 127,666.92 and 84,988.28 is: 127,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,111.26 : 127,666.92 = 84,988.28 : x
  2. Step 2: Convert to fraction form
    85,111.26/127,666.92 = 84,988.28/x
  3. Step 3: Cross multiply
    85,111.26x = 127,666.92 × 84,988.28
  4. Step 4: Simplify right side
    85,111.26x = 10,850,191,943.70
  5. Step 5: Solve for x
    x = 10,850,191,943.70/85,111.26
  6. Step 6: Final answer
    x = 127,482.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.