Home / 147,663.40-221,495.10-103,340.20

Finding the Fourth Proportional to 147,663.40, 221,495.10 and 103,340.20

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Solution

The fourth proportional to 147,663.40, 221,495.10 and 103,340.20 is: 155,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,663.40 : 221,495.10 = 103,340.20 : x
  2. Step 2: Convert to fraction form
    147,663.40/221,495.10 = 103,340.20/x
  3. Step 3: Cross multiply
    147,663.40x = 221,495.10 × 103,340.20
  4. Step 4: Simplify right side
    147,663.40x = 22,889,347,933.02
  5. Step 5: Solve for x
    x = 22,889,347,933.02/147,663.40
  6. Step 6: Final answer
    x = 155,010.30

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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.