Home / 130,923.54-180,666.45-77,210.82

Finding the Fourth Proportional to 130,923.54, 180,666.45 and 77,210.82

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Solution

The fourth proportional to 130,923.54, 180,666.45 and 77,210.82 is: 106,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,923.54 : 180,666.45 = 77,210.82 : x
  2. Step 2: Convert to fraction form
    130,923.54/180,666.45 = 77,210.82/x
  3. Step 3: Cross multiply
    130,923.54x = 180,666.45 × 77,210.82
  4. Step 4: Simplify right side
    130,923.54x = 13,949,404,750.99
  5. Step 5: Solve for x
    x = 13,949,404,750.99/130,923.54
  6. Step 6: Final answer
    x = 106,546.19

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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.