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Finding the Fourth Proportional to 147,423.80, 221,004.80 and 57,445.67

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Solution

The fourth proportional to 147,423.80, 221,004.80 and 57,445.67 is: 86,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,423.80 : 221,004.80 = 57,445.67 : x
  2. Step 2: Convert to fraction form
    147,423.80/221,004.80 = 57,445.67/x
  3. Step 3: Cross multiply
    147,423.80x = 221,004.80 × 57,445.67
  4. Step 4: Simplify right side
    147,423.80x = 12,695,769,289.92
  5. Step 5: Solve for x
    x = 12,695,769,289.92/147,423.80
  6. Step 6: Final answer
    x = 86,117.50

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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.