Home / 103,981.28-156,041.10-56,608.32

Finding the Fourth Proportional to 103,981.28, 156,041.10 and 56,608.32

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Solution

The fourth proportional to 103,981.28, 156,041.10 and 56,608.32 is: 84,950.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,981.28 : 156,041.10 = 56,608.32 : x
  2. Step 2: Convert to fraction form
    103,981.28/156,041.10 = 56,608.32/x
  3. Step 3: Cross multiply
    103,981.28x = 156,041.10 × 56,608.32
  4. Step 4: Simplify right side
    103,981.28x = 8,833,224,521.95
  5. Step 5: Solve for x
    x = 8,833,224,521.95/103,981.28
  6. Step 6: Final answer
    x = 84,950.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.