Home / 121,205.04-181,808.88-42,319.44

Finding the Fourth Proportional to 121,205.04, 181,808.88 and 42,319.44

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Solution

The fourth proportional to 121,205.04, 181,808.88 and 42,319.44 is: 63,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,205.04 : 181,808.88 = 42,319.44 : x
  2. Step 2: Convert to fraction form
    121,205.04/181,808.88 = 42,319.44/x
  3. Step 3: Cross multiply
    121,205.04x = 181,808.88 × 42,319.44
  4. Step 4: Simplify right side
    121,205.04x = 7,694,049,988.63
  5. Step 5: Solve for x
    x = 7,694,049,988.63/121,205.04
  6. Step 6: Final answer
    x = 63,479.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.