Home / 121,035.96-181,558.80-42,158.16

Finding the Fourth Proportional to 121,035.96, 181,558.80 and 42,158.16

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Solution

The fourth proportional to 121,035.96, 181,558.80 and 42,158.16 is: 63,238.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,035.96 : 181,558.80 = 42,158.16 : x
  2. Step 2: Convert to fraction form
    121,035.96/181,558.80 = 42,158.16/x
  3. Step 3: Cross multiply
    121,035.96x = 181,558.80 × 42,158.16
  4. Step 4: Simplify right side
    121,035.96x = 7,654,184,939.81
  5. Step 5: Solve for x
    x = 7,654,184,939.81/121,035.96
  6. Step 6: Final answer
    x = 63,238.93

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1.5x scale

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.