Home / 130,341.06-179,828.86-72,971.94

Finding the Fourth Proportional to 130,341.06, 179,828.86 and 72,971.94

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Solution

The fourth proportional to 130,341.06, 179,828.86 and 72,971.94 is: 100,677.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,341.06 : 179,828.86 = 72,971.94 : x
  2. Step 2: Convert to fraction form
    130,341.06/179,828.86 = 72,971.94/x
  3. Step 3: Cross multiply
    130,341.06x = 179,828.86 × 72,971.94
  4. Step 4: Simplify right side
    130,341.06x = 13,122,460,782.19
  5. Step 5: Solve for x
    x = 13,122,460,782.19/130,341.06
  6. Step 6: Final answer
    x = 100,677.87

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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.