Home / 125,315.04-172,947-71,604.36

Finding the Fourth Proportional to 125,315.04, 172,947 and 71,604.36

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Solution

The fourth proportional to 125,315.04, 172,947 and 71,604.36 is: 98,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,315.04 : 172,947 = 71,604.36 : x
  2. Step 2: Convert to fraction form
    125,315.04/172,947 = 71,604.36/x
  3. Step 3: Cross multiply
    125,315.04x = 172,947 × 71,604.36
  4. Step 4: Simplify right side
    125,315.04x = 12,383,759,248.92
  5. Step 5: Solve for x
    x = 12,383,759,248.92/125,315.04
  6. Step 6: Final answer
    x = 98,821.01

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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.