Home / 121,123.04-181,682.93-42,237

Finding the Fourth Proportional to 121,123.04, 181,682.93 and 42,237

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Solution

The fourth proportional to 121,123.04, 181,682.93 and 42,237 is: 63,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,123.04 : 181,682.93 = 42,237 : x
  2. Step 2: Convert to fraction form
    121,123.04/181,682.93 = 42,237/x
  3. Step 3: Cross multiply
    121,123.04x = 181,682.93 × 42,237
  4. Step 4: Simplify right side
    121,123.04x = 7,673,742,020.00
  5. Step 5: Solve for x
    x = 7,673,742,020.00/121,123.04
  6. Step 6: Final answer
    x = 63,354.94

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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.