Home / 139,127.36-191,995.56-75,465.08

Finding the Fourth Proportional to 139,127.36, 191,995.56 and 75,465.08

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Solution

The fourth proportional to 139,127.36, 191,995.56 and 75,465.08 is: 104,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,127.36 : 191,995.56 = 75,465.08 : x
  2. Step 2: Convert to fraction form
    139,127.36/191,995.56 = 75,465.08/x
  3. Step 3: Cross multiply
    139,127.36x = 191,995.56 × 75,465.08
  4. Step 4: Simplify right side
    139,127.36x = 14,488,960,295.04
  5. Step 5: Solve for x
    x = 14,488,960,295.04/139,127.36
  6. Step 6: Final answer
    x = 104,141.70

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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.