Home / 143,560.02-198,068.24-81,460.32

Finding the Fourth Proportional to 143,560.02, 198,068.24 and 81,460.32

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Solution

The fourth proportional to 143,560.02, 198,068.24 and 81,460.32 is: 112,389.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,560.02 : 198,068.24 = 81,460.32 : x
  2. Step 2: Convert to fraction form
    143,560.02/198,068.24 = 81,460.32/x
  3. Step 3: Cross multiply
    143,560.02x = 198,068.24 × 81,460.32
  4. Step 4: Simplify right side
    143,560.02x = 16,134,701,804.94
  5. Step 5: Solve for x
    x = 16,134,701,804.94/143,560.02
  6. Step 6: Final answer
    x = 112,389.94

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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.