Home / 207,861.28-286,849-112,367.98

Finding the Fourth Proportional to 207,861.28, 286,849 and 112,367.98

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Solution

The fourth proportional to 207,861.28, 286,849 and 112,367.98 is: 155,068.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,861.28 : 286,849 = 112,367.98 : x
  2. Step 2: Convert to fraction form
    207,861.28/286,849 = 112,367.98/x
  3. Step 3: Cross multiply
    207,861.28x = 286,849 × 112,367.98
  4. Step 4: Simplify right side
    207,861.28x = 32,232,642,695.02
  5. Step 5: Solve for x
    x = 32,232,642,695.02/207,861.28
  6. Step 6: Final answer
    x = 155,068.05

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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.