Home / 142,555.59-213,880.86-47,795.13

Finding the Fourth Proportional to 142,555.59, 213,880.86 and 47,795.13

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Solution

The fourth proportional to 142,555.59, 213,880.86 and 47,795.13 is: 71,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,555.59 : 213,880.86 = 47,795.13 : x
  2. Step 2: Convert to fraction form
    142,555.59/213,880.86 = 47,795.13/x
  3. Step 3: Cross multiply
    142,555.59x = 213,880.86 × 47,795.13
  4. Step 4: Simplify right side
    142,555.59x = 10,222,463,508.21
  5. Step 5: Solve for x
    x = 10,222,463,508.21/142,555.59
  6. Step 6: Final answer
    x = 71,708.61

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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.