Home / 130,040.64-179,454.96-70,424.64

Finding the Fourth Proportional to 130,040.64, 179,454.96 and 70,424.64

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Solution

The fourth proportional to 130,040.64, 179,454.96 and 70,424.64 is: 97,185.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,040.64 : 179,454.96 = 70,424.64 : x
  2. Step 2: Convert to fraction form
    130,040.64/179,454.96 = 70,424.64/x
  3. Step 3: Cross multiply
    130,040.64x = 179,454.96 × 70,424.64
  4. Step 4: Simplify right side
    130,040.64x = 12,638,050,954.21
  5. Step 5: Solve for x
    x = 12,638,050,954.21/130,040.64
  6. Step 6: Final answer
    x = 97,185.39

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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.