Home / 115,035.21-158,724.18-72,569.13

Finding the Fourth Proportional to 115,035.21, 158,724.18 and 72,569.13

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Solution

The fourth proportional to 115,035.21, 158,724.18 and 72,569.13 is: 100,130.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,035.21 : 158,724.18 = 72,569.13 : x
  2. Step 2: Convert to fraction form
    115,035.21/158,724.18 = 72,569.13/x
  3. Step 3: Cross multiply
    115,035.21x = 158,724.18 × 72,569.13
  4. Step 4: Simplify right side
    115,035.21x = 11,518,475,652.56
  5. Step 5: Solve for x
    x = 11,518,475,652.56/115,035.21
  6. Step 6: Final answer
    x = 100,130.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.