Home / 102,678.23-141,695.35-57,356.07

Finding the Fourth Proportional to 102,678.23, 141,695.35 and 57,356.07

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Solution

The fourth proportional to 102,678.23, 141,695.35 and 57,356.07 is: 79,151.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,678.23 : 141,695.35 = 57,356.07 : x
  2. Step 2: Convert to fraction form
    102,678.23/141,695.35 = 57,356.07/x
  3. Step 3: Cross multiply
    102,678.23x = 141,695.35 × 57,356.07
  4. Step 4: Simplify right side
    102,678.23x = 8,127,088,413.27
  5. Step 5: Solve for x
    x = 8,127,088,413.27/102,678.23
  6. Step 6: Final answer
    x = 79,151.04

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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.