Home / 147,347.80-220,875.90-72,406.60

Finding the Fourth Proportional to 147,347.80, 220,875.90 and 72,406.60

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Solution

The fourth proportional to 147,347.80, 220,875.90 and 72,406.60 is: 108,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,347.80 : 220,875.90 = 72,406.60 : x
  2. Step 2: Convert to fraction form
    147,347.80/220,875.90 = 72,406.60/x
  3. Step 3: Cross multiply
    147,347.80x = 220,875.90 × 72,406.60
  4. Step 4: Simplify right side
    147,347.80x = 15,992,872,940.94
  5. Step 5: Solve for x
    x = 15,992,872,940.94/147,347.80
  6. Step 6: Final answer
    x = 108,538.25

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1.5x scale

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.