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Finding the Fourth Proportional to 92,938.40, 130,376.20 and 92,938.40

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Solution

The fourth proportional to 92,938.40, 130,376.20 and 92,938.40 is: 130,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,938.40 : 130,376.20 = 92,938.40 : x
  2. Step 2: Convert to fraction form
    92,938.40/130,376.20 = 92,938.40/x
  3. Step 3: Cross multiply
    92,938.40x = 130,376.20 × 92,938.40
  4. Step 4: Simplify right side
    92,938.40x = 12,116,955,426.08
  5. Step 5: Solve for x
    x = 12,116,955,426.08/92,938.40
  6. Step 6: Final answer
    x = 130,376.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.