Home / 119,751.12-165,252.74-66,038.40

Finding the Fourth Proportional to 119,751.12, 165,252.74 and 66,038.40

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Solution

The fourth proportional to 119,751.12, 165,252.74 and 66,038.40 is: 91,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,751.12 : 165,252.74 = 66,038.40 : x
  2. Step 2: Convert to fraction form
    119,751.12/165,252.74 = 66,038.40/x
  3. Step 3: Cross multiply
    119,751.12x = 165,252.74 × 66,038.40
  4. Step 4: Simplify right side
    119,751.12x = 10,913,026,215.02
  5. Step 5: Solve for x
    x = 10,913,026,215.02/119,751.12
  6. Step 6: Final answer
    x = 91,130.89

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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.