Home / 147,632.40-221,297.40-72,637.20

Finding the Fourth Proportional to 147,632.40, 221,297.40 and 72,637.20

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Solution

The fourth proportional to 147,632.40, 221,297.40 and 72,637.20 is: 108,881.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,632.40 : 221,297.40 = 72,637.20 : x
  2. Step 2: Convert to fraction form
    147,632.40/221,297.40 = 72,637.20/x
  3. Step 3: Cross multiply
    147,632.40x = 221,297.40 × 72,637.20
  4. Step 4: Simplify right side
    147,632.40x = 16,074,423,503.28
  5. Step 5: Solve for x
    x = 16,074,423,503.28/147,632.40
  6. Step 6: Final answer
    x = 108,881.41

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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.