Home / 130,012.58-179,416.40-70,396.58

Finding the Fourth Proportional to 130,012.58, 179,416.40 and 70,396.58

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Solution

The fourth proportional to 130,012.58, 179,416.40 and 70,396.58 is: 97,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,012.58 : 179,416.40 = 70,396.58 : x
  2. Step 2: Convert to fraction form
    130,012.58/179,416.40 = 70,396.58/x
  3. Step 3: Cross multiply
    130,012.58x = 179,416.40 × 70,396.58
  4. Step 4: Simplify right side
    130,012.58x = 12,630,300,955.91
  5. Step 5: Solve for x
    x = 12,630,300,955.91/130,012.58
  6. Step 6: Final answer
    x = 97,146.76

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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.