Home / 103,167,980.64-142,312,690.80-64,469,628

Finding the Fourth Proportional to 103,167,980.64, 142,312,690.80 and 64,469,628

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Solution

The fourth proportional to 103,167,980.64, 142,312,690.80 and 64,469,628 is: 88,931,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,167,980.64 : 142,312,690.80 = 64,469,628 : x
  2. Step 2: Convert to fraction form
    103,167,980.64/142,312,690.80 = 64,469,628/x
  3. Step 3: Cross multiply
    103,167,980.64x = 142,312,690.80 × 64,469,628
  4. Step 4: Simplify right side
    103,167,980.64x = 9,174,846,235,555,024
  5. Step 5: Solve for x
    x = 9,174,846,235,555,024/103,167,980.64
  6. Step 6: Final answer
    x = 88,931,141.02

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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.