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Finding the Fourth Proportional to 147,056.77, 202,938.34 and 79,988.77

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Solution

The fourth proportional to 147,056.77, 202,938.34 and 79,988.77 is: 110,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,056.77 : 202,938.34 = 79,988.77 : x
  2. Step 2: Convert to fraction form
    147,056.77/202,938.34 = 79,988.77/x
  3. Step 3: Cross multiply
    147,056.77x = 202,938.34 × 79,988.77
  4. Step 4: Simplify right side
    147,056.77x = 16,232,787,039.63
  5. Step 5: Solve for x
    x = 16,232,787,039.63/147,056.77
  6. Step 6: Final answer
    x = 110,384.50

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1.5x scale

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.