Home / 115,587.36-159,502.50-65,276.64

Finding the Fourth Proportional to 115,587.36, 159,502.50 and 65,276.64

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Solution

The fourth proportional to 115,587.36, 159,502.50 and 65,276.64 is: 90,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,587.36 : 159,502.50 = 65,276.64 : x
  2. Step 2: Convert to fraction form
    115,587.36/159,502.50 = 65,276.64/x
  3. Step 3: Cross multiply
    115,587.36x = 159,502.50 × 65,276.64
  4. Step 4: Simplify right side
    115,587.36x = 10,411,787,271.60
  5. Step 5: Solve for x
    x = 10,411,787,271.60/115,587.36
  6. Step 6: Final answer
    x = 90,077.21

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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.