Home / 147,739.80-221,573.70-42,547.80

Finding the Fourth Proportional to 147,739.80, 221,573.70 and 42,547.80

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Solution

The fourth proportional to 147,739.80, 221,573.70 and 42,547.80 is: 63,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,739.80 : 221,573.70 = 42,547.80 : x
  2. Step 2: Convert to fraction form
    147,739.80/221,573.70 = 42,547.80/x
  3. Step 3: Cross multiply
    147,739.80x = 221,573.70 × 42,547.80
  4. Step 4: Simplify right side
    147,739.80x = 9,427,473,472.86
  5. Step 5: Solve for x
    x = 9,427,473,472.86/147,739.80
  6. Step 6: Final answer
    x = 63,811.33

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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.