Home / 115,095.98-158,856.95-77,348.36

Finding the Fourth Proportional to 115,095.98, 158,856.95 and 77,348.36

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Solution

The fourth proportional to 115,095.98, 158,856.95 and 77,348.36 is: 106,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,095.98 : 158,856.95 = 77,348.36 : x
  2. Step 2: Convert to fraction form
    115,095.98/158,856.95 = 77,348.36/x
  3. Step 3: Cross multiply
    115,095.98x = 158,856.95 × 77,348.36
  4. Step 4: Simplify right side
    115,095.98x = 12,287,323,956.19
  5. Step 5: Solve for x
    x = 12,287,323,956.19/115,095.98
  6. Step 6: Final answer
    x = 106,757.20

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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.