Home / 116,349.06-160,622.52-78,308.58

Finding the Fourth Proportional to 116,349.06, 160,622.52 and 78,308.58

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Solution

The fourth proportional to 116,349.06, 160,622.52 and 78,308.58 is: 108,106.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,349.06 : 160,622.52 = 78,308.58 : x
  2. Step 2: Convert to fraction form
    116,349.06/160,622.52 = 78,308.58/x
  3. Step 3: Cross multiply
    116,349.06x = 160,622.52 × 78,308.58
  4. Step 4: Simplify right side
    116,349.06x = 12,578,121,457.22
  5. Step 5: Solve for x
    x = 12,578,121,457.22/116,349.06
  6. Step 6: Final answer
    x = 108,106.77

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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.