Home / 105,090.14-145,043.16-62,651.36

Finding the Fourth Proportional to 105,090.14, 145,043.16 and 62,651.36

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Solution

The fourth proportional to 105,090.14, 145,043.16 and 62,651.36 is: 86,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,090.14 : 145,043.16 = 62,651.36 : x
  2. Step 2: Convert to fraction form
    105,090.14/145,043.16 = 62,651.36/x
  3. Step 3: Cross multiply
    105,090.14x = 145,043.16 × 62,651.36
  4. Step 4: Simplify right side
    105,090.14x = 9,087,151,232.70
  5. Step 5: Solve for x
    x = 9,087,151,232.70/105,090.14
  6. Step 6: Final answer
    x = 86,470.06

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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.