Home / 147,620.29-221,465.59-47,780.50

Finding the Fourth Proportional to 147,620.29, 221,465.59 and 47,780.50

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Solution

The fourth proportional to 147,620.29, 221,465.59 and 47,780.50 is: 71,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620.29 : 221,465.59 = 47,780.50 : x
  2. Step 2: Convert to fraction form
    147,620.29/221,465.59 = 47,780.50/x
  3. Step 3: Cross multiply
    147,620.29x = 221,465.59 × 47,780.50
  4. Step 4: Simplify right side
    147,620.29x = 10,581,736,623.00
  5. Step 5: Solve for x
    x = 10,581,736,623.00/147,620.29
  6. Step 6: Final answer
    x = 71,682.13

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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.