Home / 112,521.85-155,294.85-64,777.21

Finding the Fourth Proportional to 112,521.85, 155,294.85 and 64,777.21

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Solution

The fourth proportional to 112,521.85, 155,294.85 and 64,777.21 is: 89,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,521.85 : 155,294.85 = 64,777.21 : x
  2. Step 2: Convert to fraction form
    112,521.85/155,294.85 = 64,777.21/x
  3. Step 3: Cross multiply
    112,521.85x = 155,294.85 × 64,777.21
  4. Step 4: Simplify right side
    112,521.85x = 10,059,567,292.02
  5. Step 5: Solve for x
    x = 10,059,567,292.02/112,521.85
  6. Step 6: Final answer
    x = 89,401.01

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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.