Home / 130,070.13-179,519.63-75,639.17

Finding the Fourth Proportional to 130,070.13, 179,519.63 and 75,639.17

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Solution

The fourth proportional to 130,070.13, 179,519.63 and 75,639.17 is: 104,395.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,070.13 : 179,519.63 = 75,639.17 : x
  2. Step 2: Convert to fraction form
    130,070.13/179,519.63 = 75,639.17/x
  3. Step 3: Cross multiply
    130,070.13x = 179,519.63 × 75,639.17
  4. Step 4: Simplify right side
    130,070.13x = 13,578,714,536.11
  5. Step 5: Solve for x
    x = 13,578,714,536.11/130,070.13
  6. Step 6: Final answer
    x = 104,395.33

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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.