Home / 142,247.10-213,370.65-72,263.10

Finding the Fourth Proportional to 142,247.10, 213,370.65 and 72,263.10

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Solution

The fourth proportional to 142,247.10, 213,370.65 and 72,263.10 is: 108,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,247.10 : 213,370.65 = 72,263.10 : x
  2. Step 2: Convert to fraction form
    142,247.10/213,370.65 = 72,263.10/x
  3. Step 3: Cross multiply
    142,247.10x = 213,370.65 × 72,263.10
  4. Step 4: Simplify right side
    142,247.10x = 15,418,824,618.02
  5. Step 5: Solve for x
    x = 15,418,824,618.02/142,247.10
  6. Step 6: Final answer
    x = 108,394.65

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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.