Home / 142,916.76-197,224.02-79,254.72

Finding the Fourth Proportional to 142,916.76, 197,224.02 and 79,254.72

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Solution

The fourth proportional to 142,916.76, 197,224.02 and 79,254.72 is: 109,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,916.76 : 197,224.02 = 79,254.72 : x
  2. Step 2: Convert to fraction form
    142,916.76/197,224.02 = 79,254.72/x
  3. Step 3: Cross multiply
    142,916.76x = 197,224.02 × 79,254.72
  4. Step 4: Simplify right side
    142,916.76x = 15,630,934,482.37
  5. Step 5: Solve for x
    x = 15,630,934,482.37/142,916.76
  6. Step 6: Final answer
    x = 109,370.90

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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.