Home / 115,520.04-159,401.90-64,526.28

Finding the Fourth Proportional to 115,520.04, 159,401.90 and 64,526.28

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Solution

The fourth proportional to 115,520.04, 159,401.90 and 64,526.28 is: 89,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,520.04 : 159,401.90 = 64,526.28 : x
  2. Step 2: Convert to fraction form
    115,520.04/159,401.90 = 64,526.28/x
  3. Step 3: Cross multiply
    115,520.04x = 159,401.90 × 64,526.28
  4. Step 4: Simplify right side
    115,520.04x = 10,285,611,631.93
  5. Step 5: Solve for x
    x = 10,285,611,631.93/115,520.04
  6. Step 6: Final answer
    x = 89,037.47

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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.