Home / 133,365.40-184,061.66-76,779.16

Finding the Fourth Proportional to 133,365.40, 184,061.66 and 76,779.16

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Solution

The fourth proportional to 133,365.40, 184,061.66 and 76,779.16 is: 105,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,365.40 : 184,061.66 = 76,779.16 : x
  2. Step 2: Convert to fraction form
    133,365.40/184,061.66 = 76,779.16/x
  3. Step 3: Cross multiply
    133,365.40x = 184,061.66 × 76,779.16
  4. Step 4: Simplify right side
    133,365.40x = 14,132,099,643.01
  5. Step 5: Solve for x
    x = 14,132,099,643.01/133,365.40
  6. Step 6: Final answer
    x = 105,965.26

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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.