Home / 107,730.12-148,645.02-62,405.40

Finding the Fourth Proportional to 107,730.12, 148,645.02 and 62,405.40

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Solution

The fourth proportional to 107,730.12, 148,645.02 and 62,405.40 is: 86,106.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,730.12 : 148,645.02 = 62,405.40 : x
  2. Step 2: Convert to fraction form
    107,730.12/148,645.02 = 62,405.40/x
  3. Step 3: Cross multiply
    107,730.12x = 148,645.02 × 62,405.40
  4. Step 4: Simplify right side
    107,730.12x = 9,276,251,931.11
  5. Step 5: Solve for x
    x = 9,276,251,931.11/107,730.12
  6. Step 6: Final answer
    x = 86,106.39

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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.