Home / 153,233.60-229,423.80-78,191.60

Finding the Fourth Proportional to 153,233.60, 229,423.80 and 78,191.60

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Solution

The fourth proportional to 153,233.60, 229,423.80 and 78,191.60 is: 117,069.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,233.60 : 229,423.80 = 78,191.60 : x
  2. Step 2: Convert to fraction form
    153,233.60/229,423.80 = 78,191.60/x
  3. Step 3: Cross multiply
    153,233.60x = 229,423.80 × 78,191.60
  4. Step 4: Simplify right side
    153,233.60x = 17,939,014,000.08
  5. Step 5: Solve for x
    x = 17,939,014,000.08/153,233.60
  6. Step 6: Final answer
    x = 117,069.72

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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.