Home / 103,041.02-142,195.02-57,720.62

Finding the Fourth Proportional to 103,041.02, 142,195.02 and 57,720.62

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Solution

The fourth proportional to 103,041.02, 142,195.02 and 57,720.62 is: 79,653.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,041.02 : 142,195.02 = 57,720.62 : x
  2. Step 2: Convert to fraction form
    103,041.02/142,195.02 = 57,720.62/x
  3. Step 3: Cross multiply
    103,041.02x = 142,195.02 × 57,720.62
  4. Step 4: Simplify right side
    103,041.02x = 8,207,584,715.31
  5. Step 5: Solve for x
    x = 8,207,584,715.31/103,041.02
  6. Step 6: Final answer
    x = 79,653.57

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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.