Home / 129,307.04-178,342.52-88,495.36

Finding the Fourth Proportional to 129,307.04, 178,342.52 and 88,495.36

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Solution

The fourth proportional to 129,307.04, 178,342.52 and 88,495.36 is: 122,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,307.04 : 178,342.52 = 88,495.36 : x
  2. Step 2: Convert to fraction form
    129,307.04/178,342.52 = 88,495.36/x
  3. Step 3: Cross multiply
    129,307.04x = 178,342.52 × 88,495.36
  4. Step 4: Simplify right side
    129,307.04x = 15,782,485,510.71
  5. Step 5: Solve for x
    x = 15,782,485,510.71/129,307.04
  6. Step 6: Final answer
    x = 122,054.34

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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.