Home / 130,828.77-180,483.39-77,077.17

Finding the Fourth Proportional to 130,828.77, 180,483.39 and 77,077.17

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Solution

The fourth proportional to 130,828.77, 180,483.39 and 77,077.17 is: 106,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,828.77 : 180,483.39 = 77,077.17 : x
  2. Step 2: Convert to fraction form
    130,828.77/180,483.39 = 77,077.17/x
  3. Step 3: Cross multiply
    130,828.77x = 180,483.39 × 77,077.17
  4. Step 4: Simplify right side
    130,828.77x = 13,911,148,933.21
  5. Step 5: Solve for x
    x = 13,911,148,933.21/130,828.77
  6. Step 6: Final answer
    x = 106,330.96

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1.5x scale

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.