Home / 130,261.51-195,290.18-51,434.74

Finding the Fourth Proportional to 130,261.51, 195,290.18 and 51,434.74

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Solution

The fourth proportional to 130,261.51, 195,290.18 and 51,434.74 is: 77,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,261.51 : 195,290.18 = 51,434.74 : x
  2. Step 2: Convert to fraction form
    130,261.51/195,290.18 = 51,434.74/x
  3. Step 3: Cross multiply
    130,261.51x = 195,290.18 × 51,434.74
  4. Step 4: Simplify right side
    130,261.51x = 10,044,699,003.49
  5. Step 5: Solve for x
    x = 10,044,699,003.49/130,261.51
  6. Step 6: Final answer
    x = 77,111.80

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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.