Home / 121,187.64-181,810.31-61,068.40

Finding the Fourth Proportional to 121,187.64, 181,810.31 and 61,068.40

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Solution

The fourth proportional to 121,187.64, 181,810.31 and 61,068.40 is: 91,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,187.64 : 181,810.31 = 61,068.40 : x
  2. Step 2: Convert to fraction form
    121,187.64/181,810.31 = 61,068.40/x
  3. Step 3: Cross multiply
    121,187.64x = 181,810.31 × 61,068.40
  4. Step 4: Simplify right side
    121,187.64x = 11,102,863,975.34
  5. Step 5: Solve for x
    x = 11,102,863,975.34/121,187.64
  6. Step 6: Final answer
    x = 91,617.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.