Home / 90,707.04-135,374.58-88,345.08

Finding the Fourth Proportional to 90,707.04, 135,374.58 and 88,345.08

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Solution

The fourth proportional to 90,707.04, 135,374.58 and 88,345.08 is: 131,849.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,707.04 : 135,374.58 = 88,345.08 : x
  2. Step 2: Convert to fraction form
    90,707.04/135,374.58 = 88,345.08/x
  3. Step 3: Cross multiply
    90,707.04x = 135,374.58 × 88,345.08
  4. Step 4: Simplify right side
    90,707.04x = 11,959,678,100.07
  5. Step 5: Solve for x
    x = 11,959,678,100.07/90,707.04
  6. Step 6: Final answer
    x = 131,849.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.