Home / 155,895.02-215,134.86-84,275.08

Finding the Fourth Proportional to 155,895.02, 215,134.86 and 84,275.08

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Solution

The fourth proportional to 155,895.02, 215,134.86 and 84,275.08 is: 116,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,895.02 : 215,134.86 = 84,275.08 : x
  2. Step 2: Convert to fraction form
    155,895.02/215,134.86 = 84,275.08/x
  3. Step 3: Cross multiply
    155,895.02x = 215,134.86 × 84,275.08
  4. Step 4: Simplify right side
    155,895.02x = 18,130,507,537.29
  5. Step 5: Solve for x
    x = 18,130,507,537.29/155,895.02
  6. Step 6: Final answer
    x = 116,299.47

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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.