Home / 126,421.53-189,633.51-51,526.50

Finding the Fourth Proportional to 126,421.53, 189,633.51 and 51,526.50

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Solution

The fourth proportional to 126,421.53, 189,633.51 and 51,526.50 is: 77,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,421.53 : 189,633.51 = 51,526.50 : x
  2. Step 2: Convert to fraction form
    126,421.53/189,633.51 = 51,526.50/x
  3. Step 3: Cross multiply
    126,421.53x = 189,633.51 × 51,526.50
  4. Step 4: Simplify right side
    126,421.53x = 9,771,151,053.02
  5. Step 5: Solve for x
    x = 9,771,151,053.02/126,421.53
  6. Step 6: Final answer
    x = 77,290.25

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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.