Home / 115,184.64-158,881.98-79,312.32

Finding the Fourth Proportional to 115,184.64, 158,881.98 and 79,312.32

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Solution

The fourth proportional to 115,184.64, 158,881.98 and 79,312.32 is: 109,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,184.64 : 158,881.98 = 79,312.32 : x
  2. Step 2: Convert to fraction form
    115,184.64/158,881.98 = 79,312.32/x
  3. Step 3: Cross multiply
    115,184.64x = 158,881.98 × 79,312.32
  4. Step 4: Simplify right side
    115,184.64x = 12,601,298,439.99
  5. Step 5: Solve for x
    x = 12,601,298,439.99/115,184.64
  6. Step 6: Final answer
    x = 109,400.86

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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.