Home / 147,589.02-221,405.40-77,473.80

Finding the Fourth Proportional to 147,589.02, 221,405.40 and 77,473.80

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Solution

The fourth proportional to 147,589.02, 221,405.40 and 77,473.80 is: 116,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,589.02 : 221,405.40 = 77,473.80 : x
  2. Step 2: Convert to fraction form
    147,589.02/221,405.40 = 77,473.80/x
  3. Step 3: Cross multiply
    147,589.02x = 221,405.40 × 77,473.80
  4. Step 4: Simplify right side
    147,589.02x = 17,153,117,678.52
  5. Step 5: Solve for x
    x = 17,153,117,678.52/147,589.02
  6. Step 6: Final answer
    x = 116,222.18

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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.