Home / 98,386.20-147,506.40-42,180.30

Finding the Fourth Proportional to 98,386.20, 147,506.40 and 42,180.30

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Solution

The fourth proportional to 98,386.20, 147,506.40 and 42,180.30 is: 63,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,386.20 : 147,506.40 = 42,180.30 : x
  2. Step 2: Convert to fraction form
    98,386.20/147,506.40 = 42,180.30/x
  3. Step 3: Cross multiply
    98,386.20x = 147,506.40 × 42,180.30
  4. Step 4: Simplify right side
    98,386.20x = 6,221,864,203.92
  5. Step 5: Solve for x
    x = 6,221,864,203.92/98,386.20
  6. Step 6: Final answer
    x = 63,239.20

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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.