Home / 147,389.20-221,126.87-47,547.19

Finding the Fourth Proportional to 147,389.20, 221,126.87 and 47,547.19

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Solution

The fourth proportional to 147,389.20, 221,126.87 and 47,547.19 is: 71,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,389.20 : 221,126.87 = 47,547.19 : x
  2. Step 2: Convert to fraction form
    147,389.20/221,126.87 = 47,547.19/x
  3. Step 3: Cross multiply
    147,389.20x = 221,126.87 × 47,547.19
  4. Step 4: Simplify right side
    147,389.20x = 10,513,961,302.00
  5. Step 5: Solve for x
    x = 10,513,961,302.00/147,389.20
  6. Step 6: Final answer
    x = 71,334.68

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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.