Home / 103,097.58-142,284.63-57,783.21

Finding the Fourth Proportional to 103,097.58, 142,284.63 and 57,783.21

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Solution

The fourth proportional to 103,097.58, 142,284.63 and 57,783.21 is: 79,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,097.58 : 142,284.63 = 57,783.21 : x
  2. Step 2: Convert to fraction form
    103,097.58/142,284.63 = 57,783.21/x
  3. Step 3: Cross multiply
    103,097.58x = 142,284.63 × 57,783.21
  4. Step 4: Simplify right side
    103,097.58x = 8,221,662,655.06
  5. Step 5: Solve for x
    x = 8,221,662,655.06/103,097.58
  6. Step 6: Final answer
    x = 79,746.42

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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.