Home / 134,130.42-185,039.10-83,129.58

Finding the Fourth Proportional to 134,130.42, 185,039.10 and 83,129.58

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Solution

The fourth proportional to 134,130.42, 185,039.10 and 83,129.58 is: 114,681.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,130.42 : 185,039.10 = 83,129.58 : x
  2. Step 2: Convert to fraction form
    134,130.42/185,039.10 = 83,129.58/x
  3. Step 3: Cross multiply
    134,130.42x = 185,039.10 × 83,129.58
  4. Step 4: Simplify right side
    134,130.42x = 15,382,222,666.58
  5. Step 5: Solve for x
    x = 15,382,222,666.58/134,130.42
  6. Step 6: Final answer
    x = 114,681.09

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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.