Home / 115,117.40-158,859.61-64,130.06

Finding the Fourth Proportional to 115,117.40, 158,859.61 and 64,130.06

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Solution

The fourth proportional to 115,117.40, 158,859.61 and 64,130.06 is: 88,498.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,117.40 : 158,859.61 = 64,130.06 : x
  2. Step 2: Convert to fraction form
    115,117.40/158,859.61 = 64,130.06/x
  3. Step 3: Cross multiply
    115,117.40x = 158,859.61 × 64,130.06
  4. Step 4: Simplify right side
    115,117.40x = 10,187,676,320.88
  5. Step 5: Solve for x
    x = 10,187,676,320.88/115,117.40
  6. Step 6: Final answer
    x = 88,498.14

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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.