Home / 165,923.40-249,014.70-77,187.90

Finding the Fourth Proportional to 165,923.40, 249,014.70 and 77,187.90

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Solution

The fourth proportional to 165,923.40, 249,014.70 and 77,187.90 is: 115,842.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,923.40 : 249,014.70 = 77,187.90 : x
  2. Step 2: Convert to fraction form
    165,923.40/249,014.70 = 77,187.90/x
  3. Step 3: Cross multiply
    165,923.40x = 249,014.70 × 77,187.90
  4. Step 4: Simplify right side
    165,923.40x = 19,220,921,762.13
  5. Step 5: Solve for x
    x = 19,220,921,762.13/165,923.40
  6. Step 6: Final answer
    x = 115,842.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.