Home / 113,087.20-169,630.80-73,170.40

Finding the Fourth Proportional to 113,087.20, 169,630.80 and 73,170.40

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Solution

The fourth proportional to 113,087.20, 169,630.80 and 73,170.40 is: 109,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,087.20 : 169,630.80 = 73,170.40 : x
  2. Step 2: Convert to fraction form
    113,087.20/169,630.80 = 73,170.40/x
  3. Step 3: Cross multiply
    113,087.20x = 169,630.80 × 73,170.40
  4. Step 4: Simplify right side
    113,087.20x = 12,411,953,488.32
  5. Step 5: Solve for x
    x = 12,411,953,488.32/113,087.20
  6. Step 6: Final answer
    x = 109,755.60

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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.