Home / 130,260.81-179,763.13-72,899.68

Finding the Fourth Proportional to 130,260.81, 179,763.13 and 72,899.68

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Solution

The fourth proportional to 130,260.81, 179,763.13 and 72,899.68 is: 100,603.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,260.81 : 179,763.13 = 72,899.68 : x
  2. Step 2: Convert to fraction form
    130,260.81/179,763.13 = 72,899.68/x
  3. Step 3: Cross multiply
    130,260.81x = 179,763.13 × 72,899.68
  4. Step 4: Simplify right side
    130,260.81x = 13,104,674,631.57
  5. Step 5: Solve for x
    x = 13,104,674,631.57/130,260.81
  6. Step 6: Final answer
    x = 100,603.36

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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.