Home / 178,438.12-267,727.23-78,528.23

Finding the Fourth Proportional to 178,438.12, 267,727.23 and 78,528.23

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Solution

The fourth proportional to 178,438.12, 267,727.23 and 78,528.23 is: 117,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,438.12 : 267,727.23 = 78,528.23 : x
  2. Step 2: Convert to fraction form
    178,438.12/267,727.23 = 78,528.23/x
  3. Step 3: Cross multiply
    178,438.12x = 267,727.23 × 78,528.23
  4. Step 4: Simplify right side
    178,438.12x = 21,024,145,494.70
  5. Step 5: Solve for x
    x = 21,024,145,494.70/178,438.12
  6. Step 6: Final answer
    x = 117,823.17

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1.5x scale

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.