Home / 143,544.48-197,886.08-100,970.88

Finding the Fourth Proportional to 143,544.48, 197,886.08 and 100,970.88

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Solution

The fourth proportional to 143,544.48, 197,886.08 and 100,970.88 is: 139,195.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,544.48 : 197,886.08 = 100,970.88 : x
  2. Step 2: Convert to fraction form
    143,544.48/197,886.08 = 100,970.88/x
  3. Step 3: Cross multiply
    143,544.48x = 197,886.08 × 100,970.88
  4. Step 4: Simplify right side
    143,544.48x = 19,980,731,637.35
  5. Step 5: Solve for x
    x = 19,980,731,637.35/143,544.48
  6. Step 6: Final answer
    x = 139,195.40

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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.