Home / 147,621.20-221,431.80-146,746.40

Finding the Fourth Proportional to 147,621.20, 221,431.80 and 146,746.40

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Solution

The fourth proportional to 147,621.20, 221,431.80 and 146,746.40 is: 220,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,621.20 : 221,431.80 = 146,746.40 : x
  2. Step 2: Convert to fraction form
    147,621.20/221,431.80 = 146,746.40/x
  3. Step 3: Cross multiply
    147,621.20x = 221,431.80 × 146,746.40
  4. Step 4: Simplify right side
    147,621.20x = 32,494,319,495.52
  5. Step 5: Solve for x
    x = 32,494,319,495.52/147,621.20
  6. Step 6: Final answer
    x = 220,119.60

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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.