Home / 125,323.47-173,025-87,070.71

Finding the Fourth Proportional to 125,323.47, 173,025 and 87,070.71

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Solution

The fourth proportional to 125,323.47, 173,025 and 87,070.71 is: 120,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,323.47 : 173,025 = 87,070.71 : x
  2. Step 2: Convert to fraction form
    125,323.47/173,025 = 87,070.71/x
  3. Step 3: Cross multiply
    125,323.47x = 173,025 × 87,070.71
  4. Step 4: Simplify right side
    125,323.47x = 15,065,409,597.75
  5. Step 5: Solve for x
    x = 15,065,409,597.75/125,323.47
  6. Step 6: Final answer
    x = 120,212.20

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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.