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Finding the Fourth Proportional to 145,392.64, 200,639.23 and 88,804.02

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Solution

The fourth proportional to 145,392.64, 200,639.23 and 88,804.02 is: 122,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,392.64 : 200,639.23 = 88,804.02 : x
  2. Step 2: Convert to fraction form
    145,392.64/200,639.23 = 88,804.02/x
  3. Step 3: Cross multiply
    145,392.64x = 200,639.23 × 88,804.02
  4. Step 4: Simplify right side
    145,392.64x = 17,817,570,193.70
  5. Step 5: Solve for x
    x = 17,817,570,193.70/145,392.64
  6. Step 6: Final answer
    x = 122,547.95

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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.