Home / 130,054.04-179,469.05-81,681.24

Finding the Fourth Proportional to 130,054.04, 179,469.05 and 81,681.24

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Solution

The fourth proportional to 130,054.04, 179,469.05 and 81,681.24 is: 112,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,054.04 : 179,469.05 = 81,681.24 : x
  2. Step 2: Convert to fraction form
    130,054.04/179,469.05 = 81,681.24/x
  3. Step 3: Cross multiply
    130,054.04x = 179,469.05 × 81,681.24
  4. Step 4: Simplify right side
    130,054.04x = 14,659,254,545.62
  5. Step 5: Solve for x
    x = 14,659,254,545.62/130,054.04
  6. Step 6: Final answer
    x = 112,716.65

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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.