Home / 158,345.32-218,462.36-90,313.40

Finding the Fourth Proportional to 158,345.32, 218,462.36 and 90,313.40

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Solution

The fourth proportional to 158,345.32, 218,462.36 and 90,313.40 is: 124,601.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,345.32 : 218,462.36 = 90,313.40 : x
  2. Step 2: Convert to fraction form
    158,345.32/218,462.36 = 90,313.40/x
  3. Step 3: Cross multiply
    158,345.32x = 218,462.36 × 90,313.40
  4. Step 4: Simplify right side
    158,345.32x = 19,730,078,503.62
  5. Step 5: Solve for x
    x = 19,730,078,503.62/158,345.32
  6. Step 6: Final answer
    x = 124,601.59

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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.