Home / 147,686.40-221,551.20-47,829.60

Finding the Fourth Proportional to 147,686.40, 221,551.20 and 47,829.60

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Solution

The fourth proportional to 147,686.40, 221,551.20 and 47,829.60 is: 71,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,686.40 : 221,551.20 = 47,829.60 : x
  2. Step 2: Convert to fraction form
    147,686.40/221,551.20 = 47,829.60/x
  3. Step 3: Cross multiply
    147,686.40x = 221,551.20 × 47,829.60
  4. Step 4: Simplify right side
    147,686.40x = 10,596,705,275.52
  5. Step 5: Solve for x
    x = 10,596,705,275.52/147,686.40
  6. Step 6: Final answer
    x = 71,751.40

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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.