Home / 142,792.02-197,050.05-79,129.26

Finding the Fourth Proportional to 142,792.02, 197,050.05 and 79,129.26

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Solution

The fourth proportional to 142,792.02, 197,050.05 and 79,129.26 is: 109,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,792.02 : 197,050.05 = 79,129.26 : x
  2. Step 2: Convert to fraction form
    142,792.02/197,050.05 = 79,129.26/x
  3. Step 3: Cross multiply
    142,792.02x = 197,050.05 × 79,129.26
  4. Step 4: Simplify right side
    142,792.02x = 15,592,424,639.46
  5. Step 5: Solve for x
    x = 15,592,424,639.46/142,792.02
  6. Step 6: Final answer
    x = 109,196.75

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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.