Home / 112,987.16-169,376.12-41,870.20

Finding the Fourth Proportional to 112,987.16, 169,376.12 and 41,870.20

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Solution

The fourth proportional to 112,987.16, 169,376.12 and 41,870.20 is: 62,766.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,987.16 : 169,376.12 = 41,870.20 : x
  2. Step 2: Convert to fraction form
    112,987.16/169,376.12 = 41,870.20/x
  3. Step 3: Cross multiply
    112,987.16x = 169,376.12 × 41,870.20
  4. Step 4: Simplify right side
    112,987.16x = 7,091,812,019.62
  5. Step 5: Solve for x
    x = 7,091,812,019.62/112,987.16
  6. Step 6: Final answer
    x = 62,766.53

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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.