Home / 147,607.40-221,411.10-72,739.10

Finding the Fourth Proportional to 147,607.40, 221,411.10 and 72,739.10

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Solution

The fourth proportional to 147,607.40, 221,411.10 and 72,739.10 is: 109,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,607.40 : 221,411.10 = 72,739.10 : x
  2. Step 2: Convert to fraction form
    147,607.40/221,411.10 = 72,739.10/x
  3. Step 3: Cross multiply
    147,607.40x = 221,411.10 × 72,739.10
  4. Step 4: Simplify right side
    147,607.40x = 16,105,244,144.01
  5. Step 5: Solve for x
    x = 16,105,244,144.01/147,607.40
  6. Step 6: Final answer
    x = 109,108.65

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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.