Home / 130,901.04-180,660.12-77,191.07

Finding the Fourth Proportional to 130,901.04, 180,660.12 and 77,191.07

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Solution

The fourth proportional to 130,901.04, 180,660.12 and 77,191.07 is: 106,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,901.04 : 180,660.12 = 77,191.07 : x
  2. Step 2: Convert to fraction form
    130,901.04/180,660.12 = 77,191.07/x
  3. Step 3: Cross multiply
    130,901.04x = 180,660.12 × 77,191.07
  4. Step 4: Simplify right side
    130,901.04x = 13,945,347,065.83
  5. Step 5: Solve for x
    x = 13,945,347,065.83/130,901.04
  6. Step 6: Final answer
    x = 106,533.51

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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.