Home / 147,807.20-221,743.60-42,618

Finding the Fourth Proportional to 147,807.20, 221,743.60 and 42,618

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Solution

The fourth proportional to 147,807.20, 221,743.60 and 42,618 is: 63,936.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,807.20 : 221,743.60 = 42,618 : x
  2. Step 2: Convert to fraction form
    147,807.20/221,743.60 = 42,618/x
  3. Step 3: Cross multiply
    147,807.20x = 221,743.60 × 42,618
  4. Step 4: Simplify right side
    147,807.20x = 9,450,268,744.80
  5. Step 5: Solve for x
    x = 9,450,268,744.80/147,807.20
  6. Step 6: Final answer
    x = 63,936.46

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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.