Home / 130,973.76-180,746.64-77,271.84

Finding the Fourth Proportional to 130,973.76, 180,746.64 and 77,271.84

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Solution

The fourth proportional to 130,973.76, 180,746.64 and 77,271.84 is: 106,636.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,973.76 : 180,746.64 = 77,271.84 : x
  2. Step 2: Convert to fraction form
    130,973.76/180,746.64 = 77,271.84/x
  3. Step 3: Cross multiply
    130,973.76x = 180,746.64 × 77,271.84
  4. Step 4: Simplify right side
    130,973.76x = 13,966,625,446.62
  5. Step 5: Solve for x
    x = 13,966,625,446.62/130,973.76
  6. Step 6: Final answer
    x = 106,636.82

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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.