Home / 155,221,630.80-214,151,762.16-99,497,780.16

Finding the Fourth Proportional to 155,221,630.80, 214,151,762.16 and 99,497,780.16

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Solution

The fourth proportional to 155,221,630.80, 214,151,762.16 and 99,497,780.16 is: 137,272,265.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,221,630.80 : 214,151,762.16 = 99,497,780.16 : x
  2. Step 2: Convert to fraction form
    155,221,630.80/214,151,762.16 = 99,497,780.16/x
  3. Step 3: Cross multiply
    155,221,630.80x = 214,151,762.16 × 99,497,780.16
  4. Step 4: Simplify right side
    155,221,630.80x = 21,307,624,952,272,284
  5. Step 5: Solve for x
    x = 21,307,624,952,272,284/155,221,630.80
  6. Step 6: Final answer
    x = 137,272,265.74

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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.