Home / 201,740.02-278,307.68-130,143.10

Finding the Fourth Proportional to 201,740.02, 278,307.68 and 130,143.10

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Solution

The fourth proportional to 201,740.02, 278,307.68 and 130,143.10 is: 179,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,740.02 : 278,307.68 = 130,143.10 : x
  2. Step 2: Convert to fraction form
    201,740.02/278,307.68 = 130,143.10/x
  3. Step 3: Cross multiply
    201,740.02x = 278,307.68 × 130,143.10
  4. Step 4: Simplify right side
    201,740.02x = 36,219,824,229.01
  5. Step 5: Solve for x
    x = 36,219,824,229.01/201,740.02
  6. Step 6: Final answer
    x = 179,537.13

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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.