Home / 103,787.60-155,681.40-94,602.20

Finding the Fourth Proportional to 103,787.60, 155,681.40 and 94,602.20

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Solution

The fourth proportional to 103,787.60, 155,681.40 and 94,602.20 is: 141,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,787.60 : 155,681.40 = 94,602.20 : x
  2. Step 2: Convert to fraction form
    103,787.60/155,681.40 = 94,602.20/x
  3. Step 3: Cross multiply
    103,787.60x = 155,681.40 × 94,602.20
  4. Step 4: Simplify right side
    103,787.60x = 14,727,802,939.08
  5. Step 5: Solve for x
    x = 14,727,802,939.08/103,787.60
  6. Step 6: Final answer
    x = 141,903.30

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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.