Home / 105,342,274.33-145,276,325.36-90,452,970.57

Finding the Fourth Proportional to 105,342,274.33, 145,276,325.36 and 90,452,970.57

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Solution

The fourth proportional to 105,342,274.33, 145,276,325.36 and 90,452,970.57 is: 124,742,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,342,274.33 : 145,276,325.36 = 90,452,970.57 : x
  2. Step 2: Convert to fraction form
    105,342,274.33/145,276,325.36 = 90,452,970.57/x
  3. Step 3: Cross multiply
    105,342,274.33x = 145,276,325.36 × 90,452,970.57
  4. Step 4: Simplify right side
    105,342,274.33x = 13,140,675,181,257,676
  5. Step 5: Solve for x
    x = 13,140,675,181,257,676/105,342,274.33
  6. Step 6: Final answer
    x = 124,742,656.88

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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.