Home / 90,577.34-135,039.17-88,275.45

Finding the Fourth Proportional to 90,577.34, 135,039.17 and 88,275.45

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Solution

The fourth proportional to 90,577.34, 135,039.17 and 88,275.45 is: 131,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,577.34 : 135,039.17 = 88,275.45 : x
  2. Step 2: Convert to fraction form
    90,577.34/135,039.17 = 88,275.45/x
  3. Step 3: Cross multiply
    90,577.34x = 135,039.17 × 88,275.45
  4. Step 4: Simplify right side
    90,577.34x = 11,920,643,058.00
  5. Step 5: Solve for x
    x = 11,920,643,058.00/90,577.34
  6. Step 6: Final answer
    x = 131,607.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.