Home / 147,389.31-221,083.02-42,208.65

Finding the Fourth Proportional to 147,389.31, 221,083.02 and 42,208.65

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Solution

The fourth proportional to 147,389.31, 221,083.02 and 42,208.65 is: 63,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,389.31 : 221,083.02 = 42,208.65 : x
  2. Step 2: Convert to fraction form
    147,389.31/221,083.02 = 42,208.65/x
  3. Step 3: Cross multiply
    147,389.31x = 221,083.02 × 42,208.65
  4. Step 4: Simplify right side
    147,389.31x = 9,331,615,812.12
  5. Step 5: Solve for x
    x = 9,331,615,812.12/147,389.31
  6. Step 6: Final answer
    x = 63,312.70

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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.