Home / 147,205.80-220,700.70-58,415.40

Finding the Fourth Proportional to 147,205.80, 220,700.70 and 58,415.40

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Solution

The fourth proportional to 147,205.80, 220,700.70 and 58,415.40 is: 87,580.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,205.80 : 220,700.70 = 58,415.40 : x
  2. Step 2: Convert to fraction form
    147,205.80/220,700.70 = 58,415.40/x
  3. Step 3: Cross multiply
    147,205.80x = 220,700.70 × 58,415.40
  4. Step 4: Simplify right side
    147,205.80x = 12,892,319,670.78
  5. Step 5: Solve for x
    x = 12,892,319,670.78/147,205.80
  6. Step 6: Final answer
    x = 87,580.24

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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.