Home / 145,747.81-218,621.76-112,516.39

Finding the Fourth Proportional to 145,747.81, 218,621.76 and 112,516.39

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Solution

The fourth proportional to 145,747.81, 218,621.76 and 112,516.39 is: 168,774.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,747.81 : 218,621.76 = 112,516.39 : x
  2. Step 2: Convert to fraction form
    145,747.81/218,621.76 = 112,516.39/x
  3. Step 3: Cross multiply
    145,747.81x = 218,621.76 × 112,516.39
  4. Step 4: Simplify right side
    145,747.81x = 24,598,531,210.65
  5. Step 5: Solve for x
    x = 24,598,531,210.65/145,747.81
  6. Step 6: Final answer
    x = 168,774.62

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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.