Home / 115,328.74-159,126.50-70,005.60

Finding the Fourth Proportional to 115,328.74, 159,126.50 and 70,005.60

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Solution

The fourth proportional to 115,328.74, 159,126.50 and 70,005.60 is: 96,591.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,328.74 : 159,126.50 = 70,005.60 : x
  2. Step 2: Convert to fraction form
    115,328.74/159,126.50 = 70,005.60/x
  3. Step 3: Cross multiply
    115,328.74x = 159,126.50 × 70,005.60
  4. Step 4: Simplify right side
    115,328.74x = 11,139,746,108.40
  5. Step 5: Solve for x
    x = 11,139,746,108.40/115,328.74
  6. Step 6: Final answer
    x = 96,591.24

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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.