Home / 105,643.40-145,751.58-62,614.18

Finding the Fourth Proportional to 105,643.40, 145,751.58 and 62,614.18

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Solution

The fourth proportional to 105,643.40, 145,751.58 and 62,614.18 is: 86,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,643.40 : 145,751.58 = 62,614.18 : x
  2. Step 2: Convert to fraction form
    105,643.40/145,751.58 = 62,614.18/x
  3. Step 3: Cross multiply
    105,643.40x = 145,751.58 × 62,614.18
  4. Step 4: Simplify right side
    105,643.40x = 9,126,115,665.40
  5. Step 5: Solve for x
    x = 9,126,115,665.40/105,643.40
  6. Step 6: Final answer
    x = 86,386.05

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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.