Home / 115,444.90-159,312.45-64,458.50

Finding the Fourth Proportional to 115,444.90, 159,312.45 and 64,458.50

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Solution

The fourth proportional to 115,444.90, 159,312.45 and 64,458.50 is: 88,951.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,444.90 : 159,312.45 = 64,458.50 : x
  2. Step 2: Convert to fraction form
    115,444.90/159,312.45 = 64,458.50/x
  3. Step 3: Cross multiply
    115,444.90x = 159,312.45 × 64,458.50
  4. Step 4: Simplify right side
    115,444.90x = 10,269,041,537.04
  5. Step 5: Solve for x
    x = 10,269,041,537.04/115,444.90
  6. Step 6: Final answer
    x = 88,951.88

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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.