Home / 210,135.81-289,986.02-119,491.79

Finding the Fourth Proportional to 210,135.81, 289,986.02 and 119,491.79

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Solution

The fourth proportional to 210,135.81, 289,986.02 and 119,491.79 is: 164,897.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,135.81 : 289,986.02 = 119,491.79 : x
  2. Step 2: Convert to fraction form
    210,135.81/289,986.02 = 119,491.79/x
  3. Step 3: Cross multiply
    210,135.81x = 289,986.02 × 119,491.79
  4. Step 4: Simplify right side
    210,135.81x = 34,650,946,557.39
  5. Step 5: Solve for x
    x = 34,650,946,557.39/210,135.81
  6. Step 6: Final answer
    x = 164,897.87

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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.