Home / 103,420.02-142,704.08-58,089.32

Finding the Fourth Proportional to 103,420.02, 142,704.08 and 58,089.32

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Solution

The fourth proportional to 103,420.02, 142,704.08 and 58,089.32 is: 80,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,420.02 : 142,704.08 = 58,089.32 : x
  2. Step 2: Convert to fraction form
    103,420.02/142,704.08 = 58,089.32/x
  3. Step 3: Cross multiply
    103,420.02x = 142,704.08 × 58,089.32
  4. Step 4: Simplify right side
    103,420.02x = 8,289,582,968.43
  5. Step 5: Solve for x
    x = 8,289,582,968.43/103,420.02
  6. Step 6: Final answer
    x = 80,154.53

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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.