Home / 125,789.76-173,612.16-75,492

Finding the Fourth Proportional to 125,789.76, 173,612.16 and 75,492

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Solution

The fourth proportional to 125,789.76, 173,612.16 and 75,492 is: 104,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,789.76 : 173,612.16 = 75,492 : x
  2. Step 2: Convert to fraction form
    125,789.76/173,612.16 = 75,492/x
  3. Step 3: Cross multiply
    125,789.76x = 173,612.16 × 75,492
  4. Step 4: Simplify right side
    125,789.76x = 13,106,329,182.72
  5. Step 5: Solve for x
    x = 13,106,329,182.72/125,789.76
  6. Step 6: Final answer
    x = 104,192.34

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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.