Home / 119,784.25-165,303.03-66,070.72

Finding the Fourth Proportional to 119,784.25, 165,303.03 and 66,070.72

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Solution

The fourth proportional to 119,784.25, 165,303.03 and 66,070.72 is: 91,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,784.25 : 165,303.03 = 66,070.72 : x
  2. Step 2: Convert to fraction form
    119,784.25/165,303.03 = 66,070.72/x
  3. Step 3: Cross multiply
    119,784.25x = 165,303.03 × 66,070.72
  4. Step 4: Simplify right side
    119,784.25x = 10,921,690,210.28
  5. Step 5: Solve for x
    x = 10,921,690,210.28/119,784.25
  6. Step 6: Final answer
    x = 91,178.02

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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.