Home / 147,211.80-220,709.70-58,421.40

Finding the Fourth Proportional to 147,211.80, 220,709.70 and 58,421.40

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Solution

The fourth proportional to 147,211.80, 220,709.70 and 58,421.40 is: 87,589.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,211.80 : 220,709.70 = 58,421.40 : x
  2. Step 2: Convert to fraction form
    147,211.80/220,709.70 = 58,421.40/x
  3. Step 3: Cross multiply
    147,211.80x = 220,709.70 × 58,421.40
  4. Step 4: Simplify right side
    147,211.80x = 12,894,169,667.58
  5. Step 5: Solve for x
    x = 12,894,169,667.58/147,211.80
  6. Step 6: Final answer
    x = 87,589.24

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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.