Home / 369,916.81-554,899.82-130,001.69

Finding the Fourth Proportional to 369,916.81, 554,899.82 and 130,001.69

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Solution

The fourth proportional to 369,916.81, 554,899.82 and 130,001.69 is: 195,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,916.81 : 554,899.82 = 130,001.69 : x
  2. Step 2: Convert to fraction form
    369,916.81/554,899.82 = 130,001.69/x
  3. Step 3: Cross multiply
    369,916.81x = 554,899.82 × 130,001.69
  4. Step 4: Simplify right side
    369,916.81x = 72,137,915,117.94
  5. Step 5: Solve for x
    x = 72,137,915,117.94/369,916.81
  6. Step 6: Final answer
    x = 195,011.19

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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.