Home / 103,117.12-142,288.94-62,816.26

Finding the Fourth Proportional to 103,117.12, 142,288.94 and 62,816.26

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Solution

The fourth proportional to 103,117.12, 142,288.94 and 62,816.26 is: 86,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,117.12 : 142,288.94 = 62,816.26 : x
  2. Step 2: Convert to fraction form
    103,117.12/142,288.94 = 62,816.26/x
  3. Step 3: Cross multiply
    103,117.12x = 142,288.94 × 62,816.26
  4. Step 4: Simplify right side
    103,117.12x = 8,938,059,050.16
  5. Step 5: Solve for x
    x = 8,938,059,050.16/103,117.12
  6. Step 6: Final answer
    x = 86,678.71

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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.