Home / 112,784.60-155,631.90-67,453.40

Finding the Fourth Proportional to 112,784.60, 155,631.90 and 67,453.40

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Solution

The fourth proportional to 112,784.60, 155,631.90 and 67,453.40 is: 93,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,784.60 : 155,631.90 = 67,453.40 : x
  2. Step 2: Convert to fraction form
    112,784.60/155,631.90 = 67,453.40/x
  3. Step 3: Cross multiply
    112,784.60x = 155,631.90 × 67,453.40
  4. Step 4: Simplify right side
    112,784.60x = 10,497,900,803.46
  5. Step 5: Solve for x
    x = 10,497,900,803.46/112,784.60
  6. Step 6: Final answer
    x = 93,079.20

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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.