Home / 151,277.50-208,762.95-87,635.80

Finding the Fourth Proportional to 151,277.50, 208,762.95 and 87,635.80

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Solution

The fourth proportional to 151,277.50, 208,762.95 and 87,635.80 is: 120,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,277.50 : 208,762.95 = 87,635.80 : x
  2. Step 2: Convert to fraction form
    151,277.50/208,762.95 = 87,635.80/x
  3. Step 3: Cross multiply
    151,277.50x = 208,762.95 × 87,635.80
  4. Step 4: Simplify right side
    151,277.50x = 18,295,108,133.61
  5. Step 5: Solve for x
    x = 18,295,108,133.61/151,277.50
  6. Step 6: Final answer
    x = 120,937.40

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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.