Home / 147,140.04-220,689-47,287.08

Finding the Fourth Proportional to 147,140.04, 220,689 and 47,287.08

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Solution

The fourth proportional to 147,140.04, 220,689 and 47,287.08 is: 70,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,140.04 : 220,689 = 47,287.08 : x
  2. Step 2: Convert to fraction form
    147,140.04/220,689 = 47,287.08/x
  3. Step 3: Cross multiply
    147,140.04x = 220,689 × 47,287.08
  4. Step 4: Simplify right side
    147,140.04x = 10,435,738,398.12
  5. Step 5: Solve for x
    x = 10,435,738,398.12/147,140.04
  6. Step 6: Final answer
    x = 70,923.85

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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.