Home / 158,280.08-218,444.16-90,313.88

Finding the Fourth Proportional to 158,280.08, 218,444.16 and 90,313.88

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Solution

The fourth proportional to 158,280.08, 218,444.16 and 90,313.88 is: 124,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,280.08 : 218,444.16 = 90,313.88 : x
  2. Step 2: Convert to fraction form
    158,280.08/218,444.16 = 90,313.88/x
  3. Step 3: Cross multiply
    158,280.08x = 218,444.16 × 90,313.88
  4. Step 4: Simplify right side
    158,280.08x = 19,728,539,652.94
  5. Step 5: Solve for x
    x = 19,728,539,652.94/158,280.08
  6. Step 6: Final answer
    x = 124,643.23

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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.