Home / 130,013.58-179,417.78-70,397.58

Finding the Fourth Proportional to 130,013.58, 179,417.78 and 70,397.58

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Solution

The fourth proportional to 130,013.58, 179,417.78 and 70,397.58 is: 97,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,013.58 : 179,417.78 = 70,397.58 : x
  2. Step 2: Convert to fraction form
    130,013.58/179,417.78 = 70,397.58/x
  3. Step 3: Cross multiply
    130,013.58x = 179,417.78 × 70,397.58
  4. Step 4: Simplify right side
    130,013.58x = 12,630,577,520.97
  5. Step 5: Solve for x
    x = 12,630,577,520.97/130,013.58
  6. Step 6: Final answer
    x = 97,148.14

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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.