Home / 130,713.04-180,422.63-77,015.40

Finding the Fourth Proportional to 130,713.04, 180,422.63 and 77,015.40

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Solution

The fourth proportional to 130,713.04, 180,422.63 and 77,015.40 is: 106,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,713.04 : 180,422.63 = 77,015.40 : x
  2. Step 2: Convert to fraction form
    130,713.04/180,422.63 = 77,015.40/x
  3. Step 3: Cross multiply
    130,713.04x = 180,422.63 × 77,015.40
  4. Step 4: Simplify right side
    130,713.04x = 13,895,321,598.82
  5. Step 5: Solve for x
    x = 13,895,321,598.82/130,713.04
  6. Step 6: Final answer
    x = 106,304.02

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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.