Home / 289,681.52-434,541.71-100,160.35

Finding the Fourth Proportional to 289,681.52, 434,541.71 and 100,160.35

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Solution

The fourth proportional to 289,681.52, 434,541.71 and 100,160.35 is: 150,247.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,681.52 : 434,541.71 = 100,160.35 : x
  2. Step 2: Convert to fraction form
    289,681.52/434,541.71 = 100,160.35/x
  3. Step 3: Cross multiply
    289,681.52x = 434,541.71 × 100,160.35
  4. Step 4: Simplify right side
    289,681.52x = 43,523,848,927.25
  5. Step 5: Solve for x
    x = 43,523,848,927.25/289,681.52
  6. Step 6: Final answer
    x = 150,247.24

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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.