Home / 157,693.04-217,617.35-86,071.53

Finding the Fourth Proportional to 157,693.04, 217,617.35 and 86,071.53

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Solution

The fourth proportional to 157,693.04, 217,617.35 and 86,071.53 is: 118,779.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,693.04 : 217,617.35 = 86,071.53 : x
  2. Step 2: Convert to fraction form
    157,693.04/217,617.35 = 86,071.53/x
  3. Step 3: Cross multiply
    157,693.04x = 217,617.35 × 86,071.53
  4. Step 4: Simplify right side
    157,693.04x = 18,730,657,838.69
  5. Step 5: Solve for x
    x = 18,730,657,838.69/157,693.04
  6. Step 6: Final answer
    x = 118,779.23

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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.