Home / 156,070.95-215,378.67-88,090.80

Finding the Fourth Proportional to 156,070.95, 215,378.67 and 88,090.80

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Solution

The fourth proportional to 156,070.95, 215,378.67 and 88,090.80 is: 121,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,070.95 : 215,378.67 = 88,090.80 : x
  2. Step 2: Convert to fraction form
    156,070.95/215,378.67 = 88,090.80/x
  3. Step 3: Cross multiply
    156,070.95x = 215,378.67 × 88,090.80
  4. Step 4: Simplify right side
    156,070.95x = 18,972,879,343.24
  5. Step 5: Solve for x
    x = 18,972,879,343.24/156,070.95
  6. Step 6: Final answer
    x = 121,565.73

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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.