Home / 103,734,128.16-143,153,543.19-56,692,166.40

Finding the Fourth Proportional to 103,734,128.16, 143,153,543.19 and 56,692,166.40

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Solution

The fourth proportional to 103,734,128.16, 143,153,543.19 and 56,692,166.40 is: 78,235,433.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,734,128.16 : 143,153,543.19 = 56,692,166.40 : x
  2. Step 2: Convert to fraction form
    103,734,128.16/143,153,543.19 = 56,692,166.40/x
  3. Step 3: Cross multiply
    103,734,128.16x = 143,153,543.19 × 56,692,166.40
  4. Step 4: Simplify right side
    103,734,128.16x = 8,115,684,491,277,066
  5. Step 5: Solve for x
    x = 8,115,684,491,277,066/103,734,128.16
  6. Step 6: Final answer
    x = 78,235,433.56

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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.