Home / 90,701.04-135,365.65-88,339.08

Finding the Fourth Proportional to 90,701.04, 135,365.65 and 88,339.08

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Solution

The fourth proportional to 90,701.04, 135,365.65 and 88,339.08 is: 131,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,701.04 : 135,365.65 = 88,339.08 : x
  2. Step 2: Convert to fraction form
    90,701.04/135,365.65 = 88,339.08/x
  3. Step 3: Cross multiply
    90,701.04x = 135,365.65 × 88,339.08
  4. Step 4: Simplify right side
    90,701.04x = 11,958,076,984.60
  5. Step 5: Solve for x
    x = 11,958,076,984.60/90,701.04
  6. Step 6: Final answer
    x = 131,840.57

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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.