Home / 103,734,131.16-143,153,547.33-56,692,169.40

Finding the Fourth Proportional to 103,734,131.16, 143,153,547.33 and 56,692,169.40

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Solution

The fourth proportional to 103,734,131.16, 143,153,547.33 and 56,692,169.40 is: 78,235,437.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,734,131.16 : 143,153,547.33 = 56,692,169.40 : x
  2. Step 2: Convert to fraction form
    103,734,131.16/143,153,547.33 = 56,692,169.40/x
  3. Step 3: Cross multiply
    103,734,131.16x = 143,153,547.33 × 56,692,169.40
  4. Step 4: Simplify right side
    103,734,131.16x = 8,115,685,155,443,278
  5. Step 5: Solve for x
    x = 8,115,685,155,443,278/103,734,131.16
  6. Step 6: Final answer
    x = 78,235,437.70

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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.