Home / 153,624.08-212,002.13-85,645.34

Finding the Fourth Proportional to 153,624.08, 212,002.13 and 85,645.34

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Solution

The fourth proportional to 153,624.08, 212,002.13 and 85,645.34 is: 118,191.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,624.08 : 212,002.13 = 85,645.34 : x
  2. Step 2: Convert to fraction form
    153,624.08/212,002.13 = 85,645.34/x
  3. Step 3: Cross multiply
    153,624.08x = 212,002.13 × 85,645.34
  4. Step 4: Simplify right side
    153,624.08x = 18,156,994,453.68
  5. Step 5: Solve for x
    x = 18,156,994,453.68/153,624.08
  6. Step 6: Final answer
    x = 118,191.07

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1.5x scale

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.