Home / 115,256.16-159,116.16-79,637.64

Finding the Fourth Proportional to 115,256.16, 159,116.16 and 79,637.64

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Solution

The fourth proportional to 115,256.16, 159,116.16 and 79,637.64 is: 109,943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,256.16 : 159,116.16 = 79,637.64 : x
  2. Step 2: Convert to fraction form
    115,256.16/159,116.16 = 79,637.64/x
  3. Step 3: Cross multiply
    115,256.16x = 159,116.16 × 79,637.64
  4. Step 4: Simplify right side
    115,256.16x = 12,671,635,468.26
  5. Step 5: Solve for x
    x = 12,671,635,468.26/115,256.16
  6. Step 6: Final answer
    x = 109,943.24

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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.