Home / 155,373.27-214,421.49-87,393.40

Finding the Fourth Proportional to 155,373.27, 214,421.49 and 87,393.40

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Solution

The fourth proportional to 155,373.27, 214,421.49 and 87,393.40 is: 120,606.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,373.27 : 214,421.49 = 87,393.40 : x
  2. Step 2: Convert to fraction form
    155,373.27/214,421.49 = 87,393.40/x
  3. Step 3: Cross multiply
    155,373.27x = 214,421.49 × 87,393.40
  4. Step 4: Simplify right side
    155,373.27x = 18,739,023,044.17
  5. Step 5: Solve for x
    x = 18,739,023,044.17/155,373.27
  6. Step 6: Final answer
    x = 120,606.48

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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.