Home / 99,567.28-149,378.59-43,412.29

Finding the Fourth Proportional to 99,567.28, 149,378.59 and 43,412.29

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Solution

The fourth proportional to 99,567.28, 149,378.59 and 43,412.29 is: 65,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,567.28 : 149,378.59 = 43,412.29 : x
  2. Step 2: Convert to fraction form
    99,567.28/149,378.59 = 43,412.29/x
  3. Step 3: Cross multiply
    99,567.28x = 149,378.59 × 43,412.29
  4. Step 4: Simplify right side
    99,567.28x = 6,484,867,040.93
  5. Step 5: Solve for x
    x = 6,484,867,040.93/99,567.28
  6. Step 6: Final answer
    x = 65,130.51

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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.