Home / 186,328.48-257,124.72-101,445.28

Finding the Fourth Proportional to 186,328.48, 257,124.72 and 101,445.28

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Solution

The fourth proportional to 186,328.48, 257,124.72 and 101,445.28 is: 139,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,328.48 : 257,124.72 = 101,445.28 : x
  2. Step 2: Convert to fraction form
    186,328.48/257,124.72 = 101,445.28/x
  3. Step 3: Cross multiply
    186,328.48x = 257,124.72 × 101,445.28
  4. Step 4: Simplify right side
    186,328.48x = 26,084,089,215.32
  5. Step 5: Solve for x
    x = 26,084,089,215.32/186,328.48
  6. Step 6: Final answer
    x = 139,989.81

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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.