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Finding the Fourth Proportional to 145,395.60, 200,666.88 and 94,560

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Solution

The fourth proportional to 145,395.60, 200,666.88 and 94,560 is: 130,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,395.60 : 200,666.88 = 94,560 : x
  2. Step 2: Convert to fraction form
    145,395.60/200,666.88 = 94,560/x
  3. Step 3: Cross multiply
    145,395.60x = 200,666.88 × 94,560
  4. Step 4: Simplify right side
    145,395.60x = 18,975,060,172.80
  5. Step 5: Solve for x
    x = 18,975,060,172.80/145,395.60
  6. Step 6: Final answer
    x = 130,506.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.