Home / 145,000.32-217,460.88-39,794.28

Finding the Fourth Proportional to 145,000.32, 217,460.88 and 39,794.28

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Solution

The fourth proportional to 145,000.32, 217,460.88 and 39,794.28 is: 59,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,000.32 : 217,460.88 = 39,794.28 : x
  2. Step 2: Convert to fraction form
    145,000.32/217,460.88 = 39,794.28/x
  3. Step 3: Cross multiply
    145,000.32x = 217,460.88 × 39,794.28
  4. Step 4: Simplify right side
    145,000.32x = 8,653,699,147.77
  5. Step 5: Solve for x
    x = 8,653,699,147.77/145,000.32
  6. Step 6: Final answer
    x = 59,680.55

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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.