Home / 142,328.79-196,323-108,262.53

Finding the Fourth Proportional to 142,328.79, 196,323 and 108,262.53

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Solution

The fourth proportional to 142,328.79, 196,323 and 108,262.53 is: 149,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,328.79 : 196,323 = 108,262.53 : x
  2. Step 2: Convert to fraction form
    142,328.79/196,323 = 108,262.53/x
  3. Step 3: Cross multiply
    142,328.79x = 196,323 × 108,262.53
  4. Step 4: Simplify right side
    142,328.79x = 21,254,424,677.19
  5. Step 5: Solve for x
    x = 21,254,424,677.19/142,328.79
  6. Step 6: Final answer
    x = 149,333.28

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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.