Home / 115,191.60-158,910.08-67,415.36

Finding the Fourth Proportional to 115,191.60, 158,910.08 and 67,415.36

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Solution

The fourth proportional to 115,191.60, 158,910.08 and 67,415.36 is: 93,001.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,191.60 : 158,910.08 = 67,415.36 : x
  2. Step 2: Convert to fraction form
    115,191.60/158,910.08 = 67,415.36/x
  3. Step 3: Cross multiply
    115,191.60x = 158,910.08 × 67,415.36
  4. Step 4: Simplify right side
    115,191.60x = 10,712,980,250.83
  5. Step 5: Solve for x
    x = 10,712,980,250.83/115,191.60
  6. Step 6: Final answer
    x = 93,001.40

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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.