Home / 105,153,785.03-157,589,686.64-81,838,680.77

Finding the Fourth Proportional to 105,153,785.03, 157,589,686.64 and 81,838,680.77

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Solution

The fourth proportional to 105,153,785.03, 157,589,686.64 and 81,838,680.77 is: 122,648,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,153,785.03 : 157,589,686.64 = 81,838,680.77 : x
  2. Step 2: Convert to fraction form
    105,153,785.03/157,589,686.64 = 81,838,680.77/x
  3. Step 3: Cross multiply
    105,153,785.03x = 157,589,686.64 × 81,838,680.77
  4. Step 4: Simplify right side
    105,153,785.03x = 12,896,932,058,173,864
  5. Step 5: Solve for x
    x = 12,896,932,058,173,864/105,153,785.03
  6. Step 6: Final answer
    x = 122,648,291.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.