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Finding the Fourth Proportional to 102,295.80, 153,011.70 and 91,841.40

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Solution

The fourth proportional to 102,295.80, 153,011.70 and 91,841.40 is: 137,374.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,295.80 : 153,011.70 = 91,841.40 : x
  2. Step 2: Convert to fraction form
    102,295.80/153,011.70 = 91,841.40/x
  3. Step 3: Cross multiply
    102,295.80x = 153,011.70 × 91,841.40
  4. Step 4: Simplify right side
    102,295.80x = 14,052,808,744.38
  5. Step 5: Solve for x
    x = 14,052,808,744.38/102,295.80
  6. Step 6: Final answer
    x = 137,374.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.