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Finding the Fourth Proportional to 130,113, 179,556.06 and 70,497

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Solution

The fourth proportional to 130,113, 179,556.06 and 70,497 is: 97,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,113 : 179,556.06 = 70,497 : x
  2. Step 2: Convert to fraction form
    130,113/179,556.06 = 70,497/x
  3. Step 3: Cross multiply
    130,113x = 179,556.06 × 70,497
  4. Step 4: Simplify right side
    130,113x = 12,658,163,561.82
  5. Step 5: Solve for x
    x = 12,658,163,561.82/130,113
  6. Step 6: Final answer
    x = 97,285.93

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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.