Home / 155,503.08-214,595.16-87,521.40

Finding the Fourth Proportional to 155,503.08, 214,595.16 and 87,521.40

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Solution

The fourth proportional to 155,503.08, 214,595.16 and 87,521.40 is: 120,780.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,503.08 : 214,595.16 = 87,521.40 : x
  2. Step 2: Convert to fraction form
    155,503.08/214,595.16 = 87,521.40/x
  3. Step 3: Cross multiply
    155,503.08x = 214,595.16 × 87,521.40
  4. Step 4: Simplify right side
    155,503.08x = 18,781,668,836.42
  5. Step 5: Solve for x
    x = 18,781,668,836.42/155,503.08
  6. Step 6: Final answer
    x = 120,780.04

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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.