Home / 130,703.34-180,342.63-76,968.66

Finding the Fourth Proportional to 130,703.34, 180,342.63 and 76,968.66

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Solution

The fourth proportional to 130,703.34, 180,342.63 and 76,968.66 is: 106,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,703.34 : 180,342.63 = 76,968.66 : x
  2. Step 2: Convert to fraction form
    130,703.34/180,342.63 = 76,968.66/x
  3. Step 3: Cross multiply
    130,703.34x = 180,342.63 × 76,968.66
  4. Step 4: Simplify right side
    130,703.34x = 13,880,730,571.98
  5. Step 5: Solve for x
    x = 13,880,730,571.98/130,703.34
  6. Step 6: Final answer
    x = 106,200.27

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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.