Home / 130,928.04-180,672.66-77,215.32

Finding the Fourth Proportional to 130,928.04, 180,672.66 and 77,215.32

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Solution

The fourth proportional to 130,928.04, 180,672.66 and 77,215.32 is: 106,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,928.04 : 180,672.66 = 77,215.32 : x
  2. Step 2: Convert to fraction form
    130,928.04/180,672.66 = 77,215.32/x
  3. Step 3: Cross multiply
    130,928.04x = 180,672.66 × 77,215.32
  4. Step 4: Simplify right side
    130,928.04x = 13,950,697,257.15
  5. Step 5: Solve for x
    x = 13,950,697,257.15/130,928.04
  6. Step 6: Final answer
    x = 106,552.40

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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.