Home / 121,155.72-181,739.70-46,282.32

Finding the Fourth Proportional to 121,155.72, 181,739.70 and 46,282.32

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Solution

The fourth proportional to 121,155.72, 181,739.70 and 46,282.32 is: 69,425.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,155.72 : 181,739.70 = 46,282.32 : x
  2. Step 2: Convert to fraction form
    121,155.72/181,739.70 = 46,282.32/x
  3. Step 3: Cross multiply
    121,155.72x = 181,739.70 × 46,282.32
  4. Step 4: Simplify right side
    121,155.72x = 8,411,334,952.10
  5. Step 5: Solve for x
    x = 8,411,334,952.10/121,155.72
  6. Step 6: Final answer
    x = 69,425.82

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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.