Home / 130,810.86-180,497.26-77,088.58

Finding the Fourth Proportional to 130,810.86, 180,497.26 and 77,088.58

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Solution

The fourth proportional to 130,810.86, 180,497.26 and 77,088.58 is: 106,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,810.86 : 180,497.26 = 77,088.58 : x
  2. Step 2: Convert to fraction form
    130,810.86/180,497.26 = 77,088.58/x
  3. Step 3: Cross multiply
    130,810.86x = 180,497.26 × 77,088.58
  4. Step 4: Simplify right side
    130,810.86x = 13,914,277,467.29
  5. Step 5: Solve for x
    x = 13,914,277,467.29/130,810.86
  6. Step 6: Final answer
    x = 106,369.44

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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.