Home / 147,641.70-221,462.55-97,778.10

Finding the Fourth Proportional to 147,641.70, 221,462.55 and 97,778.10

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Solution

The fourth proportional to 147,641.70, 221,462.55 and 97,778.10 is: 146,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,641.70 : 221,462.55 = 97,778.10 : x
  2. Step 2: Convert to fraction form
    147,641.70/221,462.55 = 97,778.10/x
  3. Step 3: Cross multiply
    147,641.70x = 221,462.55 × 97,778.10
  4. Step 4: Simplify right side
    147,641.70x = 21,654,187,360.16
  5. Step 5: Solve for x
    x = 21,654,187,360.16/147,641.70
  6. Step 6: Final answer
    x = 146,667.15

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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.