Home / 130,005.36-179,407.40-73,420.36

Finding the Fourth Proportional to 130,005.36, 179,407.40 and 73,420.36

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Solution

The fourth proportional to 130,005.36, 179,407.40 and 73,420.36 is: 101,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,005.36 : 179,407.40 = 73,420.36 : x
  2. Step 2: Convert to fraction form
    130,005.36/179,407.40 = 73,420.36/x
  3. Step 3: Cross multiply
    130,005.36x = 179,407.40 × 73,420.36
  4. Step 4: Simplify right side
    130,005.36x = 13,172,155,894.66
  5. Step 5: Solve for x
    x = 13,172,155,894.66/130,005.36
  6. Step 6: Final answer
    x = 101,320.10

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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.