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Finding the Fourth Proportional to 130,210.80, 179,695.98 and 76,495.32

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Solution

The fourth proportional to 130,210.80, 179,695.98 and 76,495.32 is: 105,566.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,210.80 : 179,695.98 = 76,495.32 : x
  2. Step 2: Convert to fraction form
    130,210.80/179,695.98 = 76,495.32/x
  3. Step 3: Cross multiply
    130,210.80x = 179,695.98 × 76,495.32
  4. Step 4: Simplify right side
    130,210.80x = 13,745,901,492.81
  5. Step 5: Solve for x
    x = 13,745,901,492.81/130,210.80
  6. Step 6: Final answer
    x = 105,566.52

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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.