Home / 70,140.80-105,225.21-25,150.13

Finding the Fourth Proportional to 70,140.80, 105,225.21 and 25,150.13

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Solution

The fourth proportional to 70,140.80, 105,225.21 and 25,150.13 is: 37,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,140.80 : 105,225.21 = 25,150.13 : x
  2. Step 2: Convert to fraction form
    70,140.80/105,225.21 = 25,150.13/x
  3. Step 3: Cross multiply
    70,140.80x = 105,225.21 × 25,150.13
  4. Step 4: Simplify right side
    70,140.80x = 2,646,427,710.78
  5. Step 5: Solve for x
    x = 2,646,427,710.78/70,140.80
  6. Step 6: Final answer
    x = 37,730.22

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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.