Home / 121,271.36-181,846.04-70,686.64

Finding the Fourth Proportional to 121,271.36, 181,846.04 and 70,686.64

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Solution

The fourth proportional to 121,271.36, 181,846.04 and 70,686.64 is: 105,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,271.36 : 181,846.04 = 70,686.64 : x
  2. Step 2: Convert to fraction form
    121,271.36/181,846.04 = 70,686.64/x
  3. Step 3: Cross multiply
    121,271.36x = 181,846.04 × 70,686.64
  4. Step 4: Simplify right side
    121,271.36x = 12,854,085,564.91
  5. Step 5: Solve for x
    x = 12,854,085,564.91/121,271.36
  6. Step 6: Final answer
    x = 105,994.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.