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Finding the Fourth Proportional to 97,152.40, 134,681.71 and 91,830.70

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Solution

The fourth proportional to 97,152.40, 134,681.71 and 91,830.70 is: 127,304.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,152.40 : 134,681.71 = 91,830.70 : x
  2. Step 2: Convert to fraction form
    97,152.40/134,681.71 = 91,830.70/x
  3. Step 3: Cross multiply
    97,152.40x = 134,681.71 × 91,830.70
  4. Step 4: Simplify right side
    97,152.40x = 12,367,915,706.50
  5. Step 5: Solve for x
    x = 12,367,915,706.50/97,152.40
  6. Step 6: Final answer
    x = 127,304.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.